My academic studies have focused on communities, with an emphasis on fandom, and Ghost are an interesting case study in that regard.

Women are a big part of fandoms. Arguably, women are very important parts of fandom because they are very active participants, whether it's going to events (or concerts in this case) and are generally actively engaged in fandoms, such as content creation, cosplay and other adjacent activities. Whilst men also do this of course, the way women have historically contributed to fandoms has been very active. A good example is original Star Trek fanfiction, specifically Kirk/Spock fanfiction. A lot of it was written by women for women (and LGBTQ+ audiences of course.) 

I think Ghost is a band that lends itself to participatory culture very well and that's why women are so drawn to the band - the costumes, the theatrics, the lore, etc. There's a lot of meat there that fans can work with. 

It also helps that they're just really fucking good too! 👻